Research Randomizer
Generate Random NumbersTutorial on Random Sampling and Random AssignmentRelated LinksAbout Research Randomizer
Research Randomizer


Random sampling and random assignment have never been easier!

This site is designed for researchers and students who want a quick way to generate random numbers or assign participants to experimental conditions. Research Randomizer can be used in a wide variety of situations, including psychology experiments, medical trials, and survey research. The program uses a JavaScript random number generator to produce customized sets of random numbers.

Since its release in 1997, Research Randomizer has been used to generate number sets over 27.1 million times. This service is part of Social Psychology Network and is fast, free, and runs with any recent web browser as long as JavaScript isn't disabled.

To begin generating random numbers within a matter of seconds, simply click the button below.

Randomize Now

Site Overview
Generate Random Numbers
Use the Randomizer form to instantly generate random numbers.
Tutorial on Random Sampling and Random Assignment
See some examples of how Research Randomizer can be used for random sampling and random assignment.
Related Links
Visit links on random sampling, random assignment, and research methods.
About Research Randomizer
Learn more about Research Randomizer and read our User Policy.

Add a Research 
Randomizer Box to Your Site Add a Research 
Randomizer Box to Your Site
Add this tool to your website and generate your own number sets.


Social Psychology Network